Effect of feeding restrictions on development of juvenile cobias, Rachycentron canadum
Aim of study: A 45-day trial was conducted to evaluate fasting as a possible way of food strategy during production of juvenile cobias (Rachycentron canadum). Area of study: The study was conducted in the State of Espírito Santo, Brazil. Material and methods: The following different protocols...
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| Format: | Article |
| Language: | English |
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Consejo Superior de Investigaciones Científicas (CSIC)
2023-07-01
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| Series: | Spanish Journal of Agricultural Research |
| Subjects: | |
| Online Access: | https://revistas.inia.es/index.php/sjar/article/view/20244 |
| _version_ | 1827199849480585216 |
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| author | André B. SOUZA Jonas H. S. MOTTA Marcelo F. POLESE Henrique D. LAVANDER Leonardo S. GLÓRIA Leonardo S. SILVEIRA Manuel V. VIDAL JUNIOR |
| author_facet | André B. SOUZA Jonas H. S. MOTTA Marcelo F. POLESE Henrique D. LAVANDER Leonardo S. GLÓRIA Leonardo S. SILVEIRA Manuel V. VIDAL JUNIOR |
| author_sort | André B. SOUZA |
| collection | DOAJ |
| description |
Aim of study: A 45-day trial was conducted to evaluate fasting as a possible way of food strategy during production of juvenile cobias (Rachycentron canadum).
Area of study: The study was conducted in the State of Espírito Santo, Brazil.
Material and methods: The following different protocols were used to organize their feeding: C, fish fed to satiety twice a day for 45 days; U1, fish fed to satiety twice a day on alternate days; U2, fish fed to satiety twice daily for five consecutive days, followed by two days of food deprivation, cyclically; U5, fish subjected to food deprivation for five days and then fed to satiety twice a day for 40 days; U10, fish subjected to food deprivation for ten days and then fed to satiety twice a day for 35 days; and U15, fish subjected to food deprivation for fifteen days and then fed to satiety twice a day for 30 days.
Main results: No mortality was observed during the trial period. The different feeding protocols significantly affected juvenile cobias development and wellbeing. The final weight (g) of cobia juveniles was C – 91.9 ± 9.1; U1 – 75.0 ± 11.2; U2 – 72.2 ± 6.0; U5 – 70.3 ± 6.1; U10 – 63.4 ± 4.6; U15 – 54.4 ± 4.7. No compensatory growth was observed during the entire experimental period.
Research highlights: Continuous fasting had a more severe effect than intermittent fasting. Significantly greater hepatocyte counts were correlated with longer fasting periods. Fasting protocols should not be recommended for juvenile cobias.
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| id | doaj.art-6ac47d46e4e74388a4ada983058c6f9d |
| institution | Directory Open Access Journal |
| issn | 2171-9292 |
| language | English |
| last_indexed | 2025-03-21T10:39:27Z |
| publishDate | 2023-07-01 |
| publisher | Consejo Superior de Investigaciones Científicas (CSIC) |
| record_format | Article |
| series | Spanish Journal of Agricultural Research |
| spelling | doaj.art-6ac47d46e4e74388a4ada983058c6f9d2024-07-02T21:23:34ZengConsejo Superior de Investigaciones Científicas (CSIC)Spanish Journal of Agricultural Research2171-92922023-07-0121310.5424/sjar/2023213-20244Effect of feeding restrictions on development of juvenile cobias, Rachycentron canadumAndré B. SOUZA0Jonas H. S. MOTTA 1Marcelo F. POLESE2Henrique D. LAVANDER3Leonardo S. GLÓRIA4Leonardo S. SILVEIRA5Manuel V. VIDAL JUNIOR6Instituto Federal do Espírito Santo, Rua Augusto Costa de Oliveira, 660, Campus Piúma, Espírito Santo, 29285-000, BrazilUniversidade Estácio de Sá, Campus Campos dos Goytacazes, Av. Vinte e Oito de Março, 423 - Centro, Campos dos Goytacazes, Rio de Janeiro, 28020-740, BrazilInstituto Federal do Espírito Santo, Rua Augusto Costa de Oliveira, 660, Campus Piúma, Espírito Santo, 29285-000, BrazilInstituto Federal do Espírito Santo, Rua Augusto Costa de Oliveira, 660, Campus Piúma, Espírito Santo, 29285-000, BrazilUniversidade Estadual do Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego, 2000 - Parque Califórnia Campos dos Goytacazes – Rio de Janeiro, 28013-602, BrazilUniversidade Estadual do Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego, 2000 - Parque Califórnia Campos dos Goytacazes – Rio de Janeiro, 28013-602, BrazilUniversidade Estadual do Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego, 2000 - Parque Califórnia Campos dos Goytacazes – Rio de Janeiro, 28013-602, Brazil Aim of study: A 45-day trial was conducted to evaluate fasting as a possible way of food strategy during production of juvenile cobias (Rachycentron canadum). Area of study: The study was conducted in the State of Espírito Santo, Brazil. Material and methods: The following different protocols were used to organize their feeding: C, fish fed to satiety twice a day for 45 days; U1, fish fed to satiety twice a day on alternate days; U2, fish fed to satiety twice daily for five consecutive days, followed by two days of food deprivation, cyclically; U5, fish subjected to food deprivation for five days and then fed to satiety twice a day for 40 days; U10, fish subjected to food deprivation for ten days and then fed to satiety twice a day for 35 days; and U15, fish subjected to food deprivation for fifteen days and then fed to satiety twice a day for 30 days. Main results: No mortality was observed during the trial period. The different feeding protocols significantly affected juvenile cobias development and wellbeing. The final weight (g) of cobia juveniles was C – 91.9 ± 9.1; U1 – 75.0 ± 11.2; U2 – 72.2 ± 6.0; U5 – 70.3 ± 6.1; U10 – 63.4 ± 4.6; U15 – 54.4 ± 4.7. No compensatory growth was observed during the entire experimental period. Research highlights: Continuous fasting had a more severe effect than intermittent fasting. Significantly greater hepatocyte counts were correlated with longer fasting periods. Fasting protocols should not be recommended for juvenile cobias. https://revistas.inia.es/index.php/sjar/article/view/20244fastingfeeding protocolsfish wellbeingbeijupirámarine farmingcondition factor |
| spellingShingle | André B. SOUZA Jonas H. S. MOTTA Marcelo F. POLESE Henrique D. LAVANDER Leonardo S. GLÓRIA Leonardo S. SILVEIRA Manuel V. VIDAL JUNIOR Effect of feeding restrictions on development of juvenile cobias, Rachycentron canadum Spanish Journal of Agricultural Research fasting feeding protocols fish wellbeing beijupirá marine farming condition factor |
| title | Effect of feeding restrictions on development of juvenile cobias, Rachycentron canadum |
| title_full | Effect of feeding restrictions on development of juvenile cobias, Rachycentron canadum |
| title_fullStr | Effect of feeding restrictions on development of juvenile cobias, Rachycentron canadum |
| title_full_unstemmed | Effect of feeding restrictions on development of juvenile cobias, Rachycentron canadum |
| title_short | Effect of feeding restrictions on development of juvenile cobias, Rachycentron canadum |
| title_sort | effect of feeding restrictions on development of juvenile cobias rachycentron canadum |
| topic | fasting feeding protocols fish wellbeing beijupirá marine farming condition factor |
| url | https://revistas.inia.es/index.php/sjar/article/view/20244 |
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